GB/T 12459  弯头 DN 100-Sch10S90ESmhRFW

DN 100-Sch10S 90ESmhRFW

WN80(B)-16 RF21

47065.4 A3740

WN10B-63rj4��bïRF@F RF Sch40S��JsRF@F81BB(B0sS=100S=450-S5 RJ0f ssadF rjβ@.5

PL400B-2.5RF /

SO 20"-150 RFpampa�Â&;y

WN150-900 FM Sch

WN150-900 RJ Sch120

SO 200-150 RFC841

DN400-P